USCIS Form I-800 (Petition to Classify Convention Adoptee as an Immediate Relative) is a form used for parents who are adopting a child who lives in a Hague Convention country. Form I-800 must be filed after Form I-800A (Application for Determination of Suitability to Adopt a Child from a Convention Country) is filed and approved. Form I-800A approves you for adoption while Form I-800 starts the process of finalizing the adoption by determining whether the child being adopted qualifies as Convention adoptee. When filing Form I-800, you must send in your approval notice for Form I-800A as well as Article 16 Report, which details information about the child being adopted. You must also send in information about the primary adoption service provider as well as a statement from that provider about post-placement service options. You will also be required to send in any evidence your state requires to show that the adoption complies with relevant adoption laws. Form I-800 is usually filed with Form I-864 or Form I-864W. Sometimes Form I-601 is also required.